Question: What position was Arthur Henderson elected in and what was the position was he held?
Paraphrase: What position was Arthur Henderson chosen in and what was the position was he held?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q208665 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P2715 ?value1 . }